让我想想。
Let me think about it.
So, you should buy it now. (所以，你应该现在就买。)
Let me think about it. (让我想想。)
Give me time to think it over.
请给我点儿时间考虑。
I need some time to think it over.
I need more time to think about it.
我会考虑的。
I'll consider it. *正式的说法。表达不能马上回答时，有“请给我时间考虑”、“让我考虑考虑”的语感。
Do you like my idea? (你接受我的建议吗?)
I'll consider it. (我会考虑的。)
我考虑考虑吧。
I'll think about it. *比I'll consider it.的说法更随便，比直接拒绝语气要缓和。
Will you come to my party? (你来参加我的晚会吗?)
I'll think about it. (我考虑考虑吧。)
I'll sleep on it. *俚语。
I'll give it some thought.
我得琢磨琢磨。
I'll think it over.
Will you approve the proposal? (你同意我的计划吗?)
I'll think it over. (我得琢磨琢磨。)
请给我一个晚上的时间考虑。
Let me sleep on it.
Please give me a raise. (请给我涨工资。)
Let me sleep on it. (请给我一个晚上的时间考虑。)
我得研究研究。
I'll see what I can do.
We need longer breaks. (我们的休假有必要再长一些。)
I'll see what I can do. (我得研究研究。)